Struct Hlc 

pub struct Hlc {
    pub wall_ms: TimestampMs,
    pub counter: u32,
    pub device_id: String,
}

A single hybrid-logical-clock reading.

Example

use grit_core::Hlc;
let a = Hlc::new(1000, 0, "dev-a");
let b = Hlc::new(1000, 1, "dev-a");
assert!(a < b);
assert_eq!(a, a.encode().parse().unwrap());

Fields

wall_ms: TimestampMs

Wall-clock component, ms since epoch.

counter: u32

Logical counter, bumps when wall time stalls or runs backwards.

device_id: String

Tie-breaker: the originating device.

Implementations

impl Hlc

pub fn new( wall_ms: TimestampMs, counter: u32, device_id: impl Into<String>, ) -> Self

Construct an HLC from parts.

pub fn encode(&self) -> String

Encode to the sortable string form stored in SQLite.

Trait Implementations

impl Clone for Hlc

fn clone(&self) -> Hlc

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Hlc

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Hlc

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Hlc

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Hlc

impl FromStr for Hlc

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Error>

Parses a string s to return a value of this type.

impl Hash for Hlc

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Hlc

fn cmp(&self, other: &Hlc) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Hlc

fn eq(&self, other: &Hlc) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl PartialOrd for Hlc

fn partial_cmp(&self, other: &Hlc) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Hlc

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Hlc